32W Grow Light Bulbs for Indoor Plants, 350W Equivalent Full Spectrum LED Grow Light Bulb High PPFD with Optical Lens, Plant Bulbs with Ceramic Tech. Energy Saving for Seeds and Greens. PATENTED COC TECHNOLOGY: Chip on Ceramic, 's patented technology replaces the traditional Mcpcb aluminum substrate with a non-conductive ceramic heat sink, and directly solder the LED chip on the ceramic heat sink, effectively reducing the system thermal resistance between the LED PN junction and the surface of the heat sink, resulting in faster heat conduction and higher product reliability, makes the bulb has higher light efficiency.
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